The scene of a fatal crash on the 215 Beltway in Las Vegas on Saturday, Jan. 12, 2019. (Nevada Highway Patrol)

The scene of a fatal crash on the 215 Beltway in Las Vegas on Saturday, Jan. 12, 2019. (Nevada Highway Patrol)

The scene of a fatal crash on the 215 Beltway in Las Vegas on Saturday, Jan. 12, 2019. (Nevada Highway Patrol)

The scene of a fatal crash on the 215 Beltway in Las Vegas on Saturday, Jan. 12, 2019. (Nevada Highway Patrol)

A 46-year-old Las Vegas woman died Saturday night after a crash on the 215 Beltway near the Sahara Avenue exit.

Her car struck an unoccupied vehicle on the shoulder of the beltway, NHP said.

The woman had been driving a white Mazda 3 northbound on the 215, just south of Sahara, when “for unknown reasons” her car slammed into the back of a silver Pontiac Sunfire that was parked on the right shoulder, Highway Patrol spokesman Jason Buratczuk wrote in a release about 1:40 a.m. Sunday.

The woman was taken to UMC where she died, the release said.

The unnamed driver was not wearing a seatbelt at the time of the crash, the release said. NHP did not know whether impairment was a factor, the agency wrote.

All northbound lanes on the 215, near Sahara, were blocked after the crash, NHP tweeted about 11:40 p.m. The beltway reopened about 3:15 a.m., the department tweeted.

In 2018, the most common factors for fatal crashes in NHP’s jurisdiction were unrestrained drivers and passengers, speed and impairment, Buratczuk wrote in the release.